The present invention provides a multi-voltage power supply system for merchandise security, including a sensor configured to be connected to a plurality of merchandise, respectively, and an alarm including at least one interface for connecting the sensor, wherein the alarm is configured to be able to receive power and a safety signal from the sensor; the sensor is configured to be connectable to a power adapter via a power interface and to power the connected merchandise and/or alarm. In the present invention, the sensor is connected to an external power adapter, and the external power adapter supplies power to the sensor, and then the sensor supplies power to other components in a merchandise or an security system, such as the alarm, thereby reducing the input ports of the external power source and enabling the display of the security system more concise.

The invention disclosed here is a display system for managing power and security for a plurality of hand-held electronic devices sold to consumers in a retail location. The display includes features that allow power to be supplied to individual devices and security sensors without continuous hard wiring or multi-conductor retractor cables. The display also allows for individual security alarms to be triggered when a theft occurs. Security alarm conditions are preferably triggered via wireless signals.

Embodiments of the present invention are directed to merchandise security systems and methods for displaying and protecting an article of merchandise from theft. In one example, the system includes a sensor configured to be secured to the article of merchandise, wherein the sensor includes alarming circuitry. The system also includes a tether comprising a pair of conductors electrically connected to the alarming circuitry, wherein the pair of conductors is configured to transfer power to the sensor and/or to the article of merchandise. In response to power ceasing to be transferred, the alarming circuitry is configured to monitor an electrical signal transmitted through the pair of conductors in order to determine whether the tether has been cut or removed from the sensor.

Provided is a band cut detection system, comprising a flexible band having a transmission medium extending along its length, a processor coupled to the transmission medium, and a wireless communication device coupled to the processor, wherein the processor and wireless communication device are configured to generate and transmit a cut detection signal when the flexible band is cut, damaged, or otherwise compromised. A clasp can be included and configured to irremovably secure overlapping portions of the flexible band. The clasp can encase and protect the processor. The band cut detection system can comprise a detection application executable by a processor of a computer to receive and process the cut detection signal and responsively generate a cut detection indication.

Described herein are methods for determining, based on actual crank conditions, an ability of a battery connected to an electric starter motor, to start an internal combustion engine, wherein the battery is a single monobloc or a plurality of monoblocs that are electrically connected in series or parallel. The method may include: receiving battery temperature data, representing a temperature of the battery at a time of cranking the internal combustion engine; receiving voltage data monitored from the battery, determining an instantaneous minimum voltage of the battery during the time of cranking the internal combustion engine; and determining a capability of the battery to crank the internal combustion engine based on the battery temperature data and the instantaneous minimum voltage of the battery.

The system may be configured to perform operations including measuring a temperature and a voltage of a battery at various times producing data points, wherein each data point comprises the temperature and voltage of the battery and a respective time that the temperature and voltage was measured; assigning each data point to a respective cell in a matrix stored on a, wherein the matrix comprises a first axis comprising voltage ranges and a second axis comprising temperature ranges, wherein each cell is associated with a voltage range and a temperature range, wherein the voltage and temperature of each data point is within the voltage range and temperature range, respectively, of the respective cell; and/or generating a first value in a counter comprised in each cell reflecting a total number of data points assigned to the cell, such that the first value in each cell is stored in the memory.

Embodiments of the present invention are directed to security systems for securing an item of merchandise from theft or unauthorized removal. For example, the security system may include a sensor configured to be coupled to the item of merchandise, wherein the sensor includes an electrical connector. The security system also includes a base configured to removably support the sensor thereon, wherein the base includes an electronics module having a connector. The connector of the sensor and the connector of the electronics module are configured to electrically connect with one another when the sensor is supported on the base, and the sensor is configured to detect unauthorized removal of the item of merchandise from the sensor.

A battery monitor circuit, systems and methods are disclosed. The battery monitor circuit may have a voltage sensor, a temperature sensor, a processor for receiving a monitored voltage signal from the voltage sensor, for receiving a monitored temperature signal from the temperature sensor, and for generating voltage data and temperature data based on the monitored voltage signal and the monitored temperature signal, an antenna, and a transmitter. The battery monitor circuit may be configured for wirelessly communicating the voltage data and the temperature data to a remote device, via the antenna. In an exemplary embodiment, the battery monitor circuit is located internal to the battery and wired electrically to the battery.

A method for estimating a SOC of a battery electrically coupled to at least one of a load or a power source includes detecting, by a voltage sensor, voltages of the battery. The method further includes determining, by a processor, an average voltage of the battery by averaging the detected voltages of the battery over a predetermined period of time. The method further includes determining, by the processor, a present operating state of the battery based on at least one of the detected voltages of the battery. The method further includes determining, by the processor, a present SOC of the battery based on the present operating state of the battery and the average voltage of the battery. The method further includes transmitting, by the processor, the present SOC of the battery to an output device for outputting the present SOC of the battery.

A merchandise display security device for a portable electronic device having a removable component is provided. The merchandise display security device includes a sensor configured to be secured to the portable electronic device and monitoring electronics configured to detect unauthorized removal of the sensor from the portable electronic device. The merchandise display security device also includes a secondary sensor in electrical communication with the monitoring electronics, wherein the secondary sensor includes a flexible component configured to be positioned between the portable electronic device and the removable component. The monitoring electronics is configured to detect unauthorized removal of the removable component in response to movement of the flexible component.